Horton, Thidwick, Yertle, the Lorax, the Grinch, Sneetches, and the Cat in the Hat are just a handful of the bizarre and beloved characters Theodor S. Geisel (1904--1991), alias Dr. Seuss, created in his forty-seven children's books, from 1937's And to Think That I Saw It on Mulberry Street to 1990's Oh, the Places You'll Go! During his lifetime Dr. Seuss was honored with numerous degrees, three Academy Awards, and a Pulitzer, but the man himself remained a reclusive enigma. In this first and only biography of the good doctor, the authors, his close friends for almost thirty years, have drawn on their firsthand insights as well as his voluminous papers; the result is an illuminating, intimate portrait of a dreamer who saw the world "through the wrong end of a telescope," and invited us to enjoy the view.